Usually no. The Dr needs to see you without unnecessary lubricant's, spermicides and copious vaginal secretions all of which will interfer with the quality and amount of viable tissue for a PAP smear and not to mention it's disrespectful and more unpleasant for the examiner.

24 hours before: no sex, no bubble baths, no douching, etc. Everything down there needs to be in its normal, natural state so that testing is done in a proper environment. THese things can interfere with and cause false results for you Pap and any other testing you may need done.